| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 71 |
| Registration plate issues | 58 |
| Headlamp aim out of alignment | 36 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 27 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 11 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Drive chain excessively loose |6.2.1d| | 8 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Horn not working |1.7.3a| | 5 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 5 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 5 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 4 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 2 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Offside Handlebar deformed |2.1.1b| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 2 |
| Rear Brake pedal is inoperative |3.1.3c| | 2 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Nearside Front Lower Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Offside Front Lower Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Nearside Steering lock stop ineffective |2.1.3| | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Rear reflector on motorcycle missing (1.4.1) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Registration plate lamp issues | 2 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 2 |
| Indicator switch defective |1.5.4| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. Refitted at test station. |2.1.1c| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Front suspension assembly component cracked |2.3.1| | 1 |
| Offside Front suspension assembly component cracked |2.3.1| | 1 |
| Handlebar excessively deformed Right Clipon Bent |2.2.1 |c| |i|| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Offside Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars switchgear fouls tank,hand can trap between bar and tank |2.1.2b| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars hand could get pinched between bar and tank, right side. |2.1.2b| | 1 |
| Brake pedal is positioned so that the brake cannot be readily applied rear brake pedal floats above its natural position,allowing to wobble up/down before reaching master cylinder. |3.1.3c| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Headlamp aim not tested due to insufficient power from battery,lights are too dull. |1.6| | 1 |
| Stop lamp deteriorated and function impaired tail light and stop light too dull due to insufficient battery power |1.3.3a| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies with rear control |1.3.1a| | 1 |
| Offside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Stop lamp not working front switch faulty |4.3.1 |a| |ii|| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock L/h lock |2.1.4 |b|| | 1 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Rear Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Brake performance not tested |1.2.1 |g|| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Rear suspension component excessively corroded. linkage arm corroded and split |2.4.A.1a| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Centre Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Lower Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Rear Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Nearside Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Offside Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Rear reflector on sidecar missing |1.4.1| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Brake pedal has insufficient reserve travel brake control two |1.1.2 |a|| | 1 |
| Rear suspension bearing has excessive free play front of dog leg |2.4.A2a|i|| | 1 |
| Offside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Headlamp insecure |1.2.3b| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Nearside Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Nearside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Nearside Handlebar fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Rear Lower Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Centre Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Rear Lower Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Rear Lower Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Front Lower Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front Lower Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Upper Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Nearside Front Upper Handlebar deformed |2.1.1b| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Offside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Roller brake test indicates a binding brake unable to check hub assembly |3.3.A1a| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Brake pedal insecure |1.1.2 |e| |i|| | 1 |
| Nearside Footrest insecure |6.2.12 |a|| | 1 |
| Rear suspension bearing excessively deteriorated |2.4A.2a|i|| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Stop lamp not working from front lever |4.3.1 |a| |ii|| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Offside Front Brake locking device missing |3.2.A1e| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Brake pedal has inadequate reserve travel Full travel |3.1.3b| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Rear suspension bush has excessive free play Lower mono link |2.4.A2a|i|| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Stop lamp does not emit a steady light Operated from front lever. |1.3.1b| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride sprocket carrier nuts loose |6.2.1h| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Rear Upper Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Central Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition Exhaust Silencer Baffles fitted at Test Station. |7.1.2| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen no beam pattern |1.6.B.1| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Rear Drive chain sprocket so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Steering operation linkage fouling when handlebars turned from lock to lock (2.1.4 (a)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Front Throttle operating incorrectly engine increase when steering turned lock to lock (6.2.7 (a) (i)) | 1 |
| Suspension component pin or bush excessively worn Lower linkage rear (5.3.4 (a) (i)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Offside Front Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |